A German made Panzerkampfwagen IV tank that the Israeli Army captured in 1967. (Courtesy Auctions America)

A German made Panzerkampfwagen IV tank that the Israeli Army captured in 1967. (Courtesy Auctions America)

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Officially known as an M50 Israeli Sherman Medium Tank, this vehicle was used during the 1967 Six Day War. (Courtesy Auctions America)

Officially known as an M50 Israeli Sherman Medium Tank, this vehicle was used during the 1967 Six Day War. (Courtesy Auctions America)

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This M4A3E2 Assault Tank “Jumbo Sherman” weighs 42 tons is one of only a few in existence. (Courtesy Auctions America)

This M4A3E2 Assault Tank “Jumbo Sherman” weighs 42 tons is one of only a few in existence. (Courtesy Auctions America)

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This vehicle towed gun crews, ammunition, and medium artillery during World War II. (Courtesy Auctions America)

This vehicle towed gun crews, ammunition, and medium artillery during World War II. (Courtesy Auctions America)

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The DUKW Amphibious Truck was designed in 1942 and used to transport equipment to land from ships. (Courtesy Auctions America)

The DUKW Amphibious Truck was designed in 1942 and used to transport equipment to land from ships. (Courtesy Auctions America)

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The FV3901 Churchill Toad Flail Tank was built in 1942 and designed to clear minefields. (Auctions America)

The FV3901 Churchill Toad Flail Tank was built in 1942 and designed to clear minefields. (Auctions America)

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The 2S7 “Pion” 203-mm Self-Propelled Gun weighs 50 tons and was made in the Soviet Union. (Courtesy Auctions America)

The 2S7 “Pion” 203-mm Self-Propelled Gun weighs 50 tons and was made in the Soviet Union. (Courtesy Auctions America)

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In the market for a used tank?

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If you're in the market for a large and expensive tank then you should probably know about an unusual auction in Silicon Valley this weekend — one offering more than 100 historic military vehicles.

Just be ready to open up your wallet.

Throughout his life, Jacques Littlefield, a Silicon Valley engineer, collected high-value military vehicles and equipment used from World War I to the Gulf War, according to Auctions America, which is handling the sale. When he passed, the vehicles were given to the Massachusetts-based Collings Foundation.

Now, much of Littlefield's collection, which is billed as one of the largest ever, is up for sale this weekend at the Military Vehicle Technology Foundation in Portola Valley.

Some of the pricier items include the German Panzer IV, a tank likely built in 1944 and expected to be sold for more than $2 million. Or, you could snag a Soviet-made vehicle, equipped with a 203mm cannon and estimated to go for up to $170,000.

Those interested can visit the foundation for a free preview of the tanks Thursday (until 6 p.m.). The auction officially begins on Friday.

The equipment will be on sale at 11 a.m. Friday (doors open at 9 a.m.) and the vehicles themselves will be on sale on Saturday at the same time, said Amy Christie, an Auctions America spokeswoman. Bidders must register, and if you'd like to buy the Panzer, you have to put in a minimum bid.

The proceeds will go toward funding a new building for the Collings Foundation.